If someone is hospitalized, they are taken into a hospital and kept there for treatment — not just a short visit to a doctor.

If someone is hospitalized如果有人被hospitalized, they are taken into a hospital他們就是被送進醫院 and kept there for treatment並留院治療 — not just a short visit to a doctor不只是去看個醫生那麼短暫。

We hospitalize a person; more often we hear it the other way round: she was hospitalized after the crash.

We hospitalize a person我們會說hospitalize一個人; more often我們更常聽到的是 we hear it the other way round反過來的說法：she was hospitalized after the crash「她車禍後被送醫住院了」。

In American English this is the usual word. In British English people more often say she was taken to hospital or she is in hospital, though they may write hospitalise with an s.

In American English在美式英語裡, this is the usual word這是常用的字。In British English在英式英語裡, people more often say她被送去醫院了 she was taken to hospital or she is in hospital人們比較常說或說她在住院, though they may write hospitalise with an s不過他們可能會拼成hospitalise，帶個s。

It sounds a little official: news and medical notes use it more than friends chatting.

It sounds a little official它聽起來有點正式: news and medical notes use it more than friends chatting新聞報導和醫療記錄用它的頻率，比朋友聊天時高。

Though actually, speakers sometimes stretch it. They may say hospitalized for a night in the emergency room even when the hospital only watched the person and did not really keep them in as a patient.

Though actually不過實際上, speakers sometimes stretch it人們有時候會把這個字用得寬鬆一點。They may say hospitalized for a night in the emergency room他們可能會說在急診室住院一晚 even when the hospital only watched the person即使醫院其實只是觀察這個人 and did not really keep them in as a patient並沒有真的把他們收治為住院病人。